Mold for forming walls.



No. 849,126. PATBNTED APR. 2, 1907.

W. D. HAM. MOLD FOR FORMING WALLS.

APPLICATION FILED MAY 24, 1906.

UNITED STATES PATENT OFFICE.

WILLIAM 'D. HAM, or KNoxvELE, 'rENNEssEE.- Moro on FORMING WALLS.

. Specification of Letters Patent.

Patented April 2, 1907,

. Application filedMay 24.19%. Serial No- 318,586.

To all whom it may concern:

Be it known that I, WILLIAM --D. HAM, a citizen of the United States, residin at Knoxville, in the county of Knox an State of walls.

I may make my wall of concrete, cement, or similar material and employ in the formation thereof mold mechanism of an advantageous character. The Wallis of integral construction throughout, and it has therein airspaces, which in-the present case are'in the nature of vertically-disposed flues. From the statement just made it will be obvious that the wall is seamless or jointless, which is not the case with a Wall built up of bricks, blocks, or like articles. Walls of thelatter type are objectionable in that the mortar or e uivalent material employed in laying such b ocks, bricks, or like articles carriesmoisture or water. By means of my wall, this difiiculty is wholly remedied and without affecting the stability of the wall. I employ the latter designation in a broad sense to include not only exterior walls, but interior wallsor partitions.

In carryin mold general y composed ofsectional sides and a'core, the distance between said sides determining the thickness of the wall and the diameter of the core defining the size of said airspace. I may employ anynumber of these cores, and they may be of any desirable shape. The materials ofwhich the said sidesand core or cores are composedfare immaterial, although wood planking may conveniently be utilized for constituting the sides, while metal may be employed to corn struct the said core or cores. place the I mold sides opposite each other. and dispose upper mold side sections and also elevate the core therebetween and fill in the space between said sides with concrete in a plastic condition and-afterward elevate the under mold side sections and place them on top of the core or cores, soas to provide additional inclosed space over the partially-formed wall in which the plastic cement or concrete can The elevation of the mold side sections and the core is practically simultaneous. I may to provide additional strength in the wall place therein anchoring, binding, ortying deout my invention I employ avices, which may be of any desirable character and material. 3 These usually consist of metallic strips permanently fastened in the wall and have their ends during the construction of such wall extending outward .be-.

yond the side faces thereof, by reason of which said outwardly-extended ends can be advantageously employed as supports for the mold sections. Afterward, if necessary,

these outwardly-projecting ends can be I sheared or clipped oil, so as to leave no protrusions from the opposite faces of the wall, or such "ends canbe bent, down, if desirable, into the wall and covered with concrete. The airspaces in the wall insulate the interior-of a building from the external atmosphere, so

that the wall itself does not act as a conductor either for heat or cold. In addition to this these air-spaces serve as conduits for water, so that should any water be projected against the exterior of the wall it could not pass entirely therethrough, but would go only to-the air-spaces, enter the same, and

then-descend to the bottom. From this it will be evident that the wall in addition to acting as -a non-conductor for heat and cold also serves a like function with respect to water or other liquids, in view of which I can ornamentally face the interior of the wall to any desirable extent without possibility of such ornamental facing being injured by moisture applied externally.

In the drawings accompanying and -forming part of this specification I show certain simple forms of embodiment of my invention;

but I do, not limit myself to the'showing thus within the scope of my claims succeeding such description.

In said drawings, Figure 1 is a vertical section of a wall and a moldcomprising my inventicn' and showing. the wall in-process of construction; Fig. 2 is an inside face view of the same, and Fig. 3 atop plan view thereof.

made, for certain variations may be adopted Fig. 4 is a detail view in. perspective of a core.

Fig. 5 is a like view of a tying-strip. Fig. 6 is a longitudinal section of SaICl'StI'IP, Fig. 7

is a detail view in perspective of a modified form of mold side sections. Fig. 8 is a like-view of one end ofa modified form of ancho1'ing-strip and certain cooperating parts. 'begflplaced to unite with the partially-formed w Like characters refer to like parts through- .out the several figures.

I sirable number.

be of any desirable shape.

For example, the outer side 2 may consist of three sections 4, 5, and 6, while the inner side 3 may consist of similar sections, as 7, 8, and 9, all of which may be made of wood. This, however, is not essential, for the said parts may be of metal or p be of composite construction as particular.

fancy may dictate. In addition to the sides 2 and 3' the mold comprises a core, as 10. In building a wall I employ-a large number of these cores, as clearly shown'inFigs. 2 and 3, such cores as represented in said two views bein arranged in comparatively close order and eing vertically disposed, so as to form in the wall in a manner that will hereinafter appearcontinuous vertical fiues, as 11. (See Fig. 1.) p The cores 10 may, as previously indicated,

during the formation of the wall are sustained near their free outer ends by the mold sides 2 and 3. A strip 13 extends through each tubular core 10, diametrically thereof and substantiallymidwaybetween the lapped joint of said core and a pointsubstantially' opposite said lapped joint, so as not to inter fere with the resilience of the core. Such strips effectually position the cores 10 and prevent their movement and also positively space the same.

In Figs. 1 and 2 of the drawings I have of such artially-formed wall agreeing with the com ined width of two of the boards or 5 o is.

planks composing the sides 2 and 3. When the wall is built up to a height agreeing with the width .of one of said boards or planks, I

. lay transversely across the top thereof strips as 13. These stripsmay be spaced apart any desirable distance, the same de ending upon the thickness, len th, and heig t of the wall to be made, and t ey are of such length that when laid into the wall their ends project beyond the opposite faces of said wall, as clearly shown in Figs. 1, 2, and 3, so that such projecting ends can be utilized to uphold the mold or the sections. thereof.

through, the stock beiii deflected down- Ward in forming the pe orations, so as to produce, inefiect, barbs, as 15, which are emedded in the wall while the same is in a plas- For example,

I may extend through the cores, near, their heads, anchoring-strips, as 13, which,

These strips may have perforations, as 14, punched theretic condition to aid inholding such strips 13- in place. The strips may be further and securely retained in position by pins, as 16,

driven through the perforations 14 and into the wall before the same is set. I

- When a line of strips is connected with the partially-formed wall, I mount u on the same the mold sides 2 and 3 ,placing t e lower sections 4. and 7"upon the .lowest strips 13 in Fig. 1 and below the next higher strips 13 in said figure. It will be seen that there are located near the outer ends of the strips 13 perforations 16', which are located beyond the side faces of the wall, and I passthrough these perforations dowel-pins, as 17 which enter cor'respondin openings in the planks or boards of the moId sides. I then'place the sections 5 and 8 upon the strips 13 and place on to of the same stri s 13 and connect'the boar s and 8 with t e boards 4 and 7 by said dowel-pins. On top of said boards 5 and SI lace the strips 13 and connect the same wit said boards 5 and 8 by such dowel-pins, the boards 6 and 9 being then connected with the latter dowel-pins. The upper boards 6 and 9 then'serve to sustain the strips 13, several of which supportthe cores 10. When the mold is'thus assembled, Iintro'duce said cores 10 into the space between the sides 2 and'3 andinsert the lower ends of said cores into the upper portions of the previouslyformed partially-made air spaces or flues 11 and also firmly maintain the cores in position in the manner hereinbefore set forth. When this is done, I 'fill in the space between the upper sections of the sides 2 and 3 with cement or concrete, and, when the cement or.

concrete has set I draw out the corefor cores,

then withdraw the lowest dowel-pins 17 and place the lowest mold-sections 4 and 7 on top of the mold-sections 6 and 9, the strips 13 being then disposed between the sections 4. and 6 and 7 and 9 and all being connected by dowel-pins, such as 17 shown a wall as partially formed, the height \I may, as shown at 18 in Fi 7, notch the upper and lower edges ofthe, oards' or sec tions comprising the 'sidesof the mold, these notches or a ertu'res being intended'to accommodate t e o posite projecting ends of "the strips13, as s own in Fi 2, to thereby prevent endwise or longitudinal movement of themold-sections and assure the formation of the wall. in a perpendicular manner.

By virtue of the positive but direct and separable connections between the mold-sections and the strips such mold-sections are prevented from being outwardly displaced as well as from inward collapse. In view therefore of'the relations set forth I prevent movement in all directions of the sections of the mold, and thereby insure accurate and precise results. i

It is not necessary in all cases to perforate the opposite ends of the strips 13forthe accornmodation of dowel-pins, such as 17, for

in Fig. 8 I show an organization wherein it is not necessaryto directly positively connect the mold-sections. The strip in this figure is designated 13. The opposite ends of strip 13' are engaged on the upper and lower sides by complemental plates 19, which are slotted, the slots in said lates 19 being adapted to register with the s ots in the said strip 13 and to receive wedgeins, as 20. The'plates 19 are adapted to t in apertures, as 18, in superposed mold-sections, the pins 20 being located outside of said mold-sections and preventin outward displacement of the same, while anges, as 21, at the inner ends of saidplates prevent inward motion of said moldsections. Endwise motion of said mold-sections is therefore prevented by reason of the fact that the clamping-plates -19 lie in apertures or notches in the mold-sections.

I may, as shown in Fig. 7, impose upon the inner surface'of the mold-sections beads or projecting portions, as 22, so as to 1pg'oduce in-the wall the effect of bricks or bloc It will be understood that the strips 13 have each but two slots and these slots are intended to receive keys or wedge-pins 20,;and

said strips 13 are plain or smooth, as it is not intended that the same should be permanently associated with the-wall. The only object that these strips 13' accom lish is to tie together or hold in assembled re ation the sections of the mold. When a certain portion of the wall has been laid, these strips 13 should be removed from lace, and so that this act can be readily performed 1 oil them prior to their beinglaid in the wall, the oil havin the effect of deadening the concrete immediately around such oiled strips. After such strips 13 are driven from the wall, the openings made by them can be closed by concrete. V

The strips 13 in addition to serving to reinforce or strengthen the wall also tie the mold-sections together. The-strips 13, however, remain permanently in the wall.-

The present invention is of the same general character as that set forth in my for a so supporting said sections, said strips being separably related within the sections and a divided tubular core between the sides, 1

00- paending application, Serial No. 319 ,341, filed- In my claims Iuse the expression ceo ment. This designation is employed in a broad sense not only to include the substance so known to the trade, but to also include concretematerial and any other article or composition that can be employed in making 5 5 a wall possessing the characteristics hereinbefore set forth.

What I claim is 1. A'mold comprising opposite sides, a resilient core between said sides, and a strip supported by the upper ed es of said sides, crossing the space between t e latter, and re} movably connected with the upper end of the core, the latter being pendent from said l s 2. A- mold comprising opposite sides, a strip extending across and supported by the up er edges 0 said sides, an a divided tu bu arcore between the sides, said core having openings near its u per end through which said strip removaby passes for su porting the core, the latter eing pendent om the strip- 3. A mold having sides composed of sections, and strips extendin' across the space between said sides, for ho dingo-the sections in o erative relation with each other, and

to permit the sections to be'separated from the strips for leavin the latter permanently in the mass molded etween said sides.

4. A mold comprising parallel sides, a strip extending across and supported by said sides,

8 5' saidcore having 0 enings through which said strip passes to t ereby support the core. and the dividing-line of the core being dis-- posed substantially centrally between said openings. v i

1 In testimony whereof I have hereunto set I my hand in presence of two subscribing witnesses.

' WILLIAM J). HAM.

Witnesses:

HEATH SUTHERLAND, BERNARD VAsnoN. 

